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Silver paste for aluminum nitride ceramic
The invention discloses silver paste for aluminum nitride ceramics. The silver paste comprises the following components in percentage by weight: 60-80% of silver powder, 3-5% of glass powder and 15-37% of organic carrier, the silver powder is formed by mixing amorphous silver powder and spherical silver powder; the glass powder adopts a BaO-B2O3-SiO2-TiO2-ZnO material system, meanwhile, polyvinyl butyral (PVB) is added into a glass formula, and a trace amount of P and B elements are doped. The particle size distribution of the glass powder is concentrated, the softening temperature of the glass is 600-650 DEG C, the glass transition temperature is 700-750 DEG C, and the thermal expansion coefficient is 5.0-7.0 * 10 <-6 >/DEG C. The glass powder does not contain alkali metal ions, so that the prepared silver paste is low in loss; the glass powder adopts a glass bonding and chemical bond mixing mode, so that the prepared silver paste is high in adhesive force and resistant to aging.
本发明公开了一种氮化铝陶瓷用银浆，其重量百分比组成为：银粉60%～80%、玻璃粉3%～5%、有机载体15%～37%；所述银粉采用无定型银粉与球状银粉混合使用；玻璃粉采用BaO‑B2O3‑SiO2‑TiO2‑ZnO材料体系，同时在玻璃配方中加入聚乙烯醇缩丁醛（PVB），并掺入微量的P和B元素。本发明玻璃粉粒度分布集中，玻璃的软化温度在600～650℃之间，玻璃化温度在700～750℃之间，热膨胀系数在5.0～7.0×10‑6/℃。玻璃粉不含有碱金属离子，故制备银浆损耗小；该玻璃粉采用玻璃粘接与化学键混合方式，故制的银浆附着力高，耐老化。
Silver paste for aluminum nitride ceramic
The invention discloses silver paste for aluminum nitride ceramics. The silver paste comprises the following components in percentage by weight: 60-80% of silver powder, 3-5% of glass powder and 15-37% of organic carrier, the silver powder is formed by mixing amorphous silver powder and spherical silver powder; the glass powder adopts a BaO-B2O3-SiO2-TiO2-ZnO material system, meanwhile, polyvinyl butyral (PVB) is added into a glass formula, and a trace amount of P and B elements are doped. The particle size distribution of the glass powder is concentrated, the softening temperature of the glass is 600-650 DEG C, the glass transition temperature is 700-750 DEG C, and the thermal expansion coefficient is 5.0-7.0 * 10 <-6 >/DEG C. The glass powder does not contain alkali metal ions, so that the prepared silver paste is low in loss; the glass powder adopts a glass bonding and chemical bond mixing mode, so that the prepared silver paste is high in adhesive force and resistant to aging.
本发明公开了一种氮化铝陶瓷用银浆，其重量百分比组成为：银粉60%～80%、玻璃粉3%～5%、有机载体15%～37%；所述银粉采用无定型银粉与球状银粉混合使用；玻璃粉采用BaO‑B2O3‑SiO2‑TiO2‑ZnO材料体系，同时在玻璃配方中加入聚乙烯醇缩丁醛（PVB），并掺入微量的P和B元素。本发明玻璃粉粒度分布集中，玻璃的软化温度在600～650℃之间，玻璃化温度在700～750℃之间，热膨胀系数在5.0～7.0×10‑6/℃。玻璃粉不含有碱金属离子，故制备银浆损耗小；该玻璃粉采用玻璃粘接与化学键混合方式，故制的银浆附着力高，耐老化。
Silver paste for aluminum nitride ceramic
一种氮化铝陶瓷用银浆
LI DONGMING (author) / LI HONGJIE (author) / ZHANG JIRUI (author) / SUN RUIJUAN (author) / LI YUBEI (author)
2023-03-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C03B
Herstellung oder Formgebung von Glas, Mineral- oder Schlackenwolle
,
MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL
/
C03C
Chemische Zusammensetzungen für Gläser, Glasuren oder Emails
,
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
/
H01B
CABLES
,
Kabel
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